Self-feeding hammer



N. M. PURVIANCE.

SELF FEEDING HAMMER,

APPLICATION FILED 0013111921.

' Patented Nov. 211, 1922.

3 SHEETSSHEET L.

W1 i-mjmq W y /7 & 1/672 for 0/1 51 2?? a n 0% Pam/21a nag N. M. PURVIANCE.

SELF FEEDING HAMMER.

APPLICATION FILED OCT. 31. 1921.

1AS5 978 Patented Nova 21, 1922;

3 SHEETSSHEET 2.

N. M. PURVIANCE.

SELF FEEDING HAMMER.

APPLICATION FILED OCT. 3:, 1921.

Lksfi wao PatentediNovu 21,1922,

3 SHEETS-SHEET 3.

Patented Nov. El, 1222..

NATHAN M. PURVIANGE, 01E LEWISTON, IDAHO.

SELF-FEEDING HAMMER.

Application filed. October 31, 1921. Serial No. 511,625.

To all whom-it may concern:

Be it known that I, NATHAN M. PURVI- ANOE, a citizen of the United States, and a resident of the cit of Lewiston, county of Nez Perce, and tate of Idaho, have invented certain new and useful Improvements in Self-Feeding Hammers, of which the following is a specification.

My invention relates to new and useful improvements in self-feeding hammers and has for its principal object the provision of feeding tacks or the like, by a single 0 erative stroke of the hammer, to the discharge opening of the barrel or handle thereof.

A further object of my invention is to provide a self-feeding hammer in which a continuous tack bearing member is used from which tacks are ruptured therefrom,

and driven by a single operative stroke,

A further object of my invention is the provision of an improved construction of this character which will be highly efiicient in use and economical in manufacture.

Other objects will appear hereinafter.

The invention will be best understood by reference to the accompanying drawings forming a part of this specification, and in which,

Fig. 1 is a longitudinal vertical sectional view of my improved hammer,

F ig. 2 is a longitudinal horizontal sectional view of the same taken substantially on line 2-2 of Fig. 1.

Fig. 3 is a sectional detail view of the discharged end of the hammer taken substantially on line 33 of Fig. 2,

Fig. 4: is a longitudinal horizontal sectional view of the same taken substantially 40 on line 4- 1 of Fig. 5,

Fig. 5 is a longitudinal vertical sectional view of the same taken substantially on line 5-5 of Fig. 4,

F ig, 6 is a fragmentary sectional detail view of the same taken substantially on line 6-6 of Fig. 2,

Fig. 7 is a fragmentary sectional detail view of the same taken substantially on line 77 of Fig. 2,

Fig. 8 is a bottom plan view of my improved hammer showing the same mounted on one end of an operating handle, and

Fig. 9 is a side elevational view of the same.

The preferred form of construction as illustrated in the drawings comprises a housing or barrellO open. at one end thereof, and provided with a hammer head 11, rigidly fixed to-theopposite end thereof. The barrel 10 may be formed of sheet metal or any other suitable material and may be of any size or shape. Mounted within the barrel and extending longitudinally with respect thereto is a removable carriage 12 provided with a laterally disposed U-shaped trackway 13 extending longitudinally with respect thereto. Means is provided for locking the carriage in the barrel 10, said means comprising a socket bearing member 10 formed on one side of the carriage adjacent the inner end thereof adapted to receive a spring held lock pin 11 which is slidably mounted in the adjacent side Wall of the barrel 10. This arrangement is such that the carriage 12 may be locked in the barrel 10, however, if it is not desired to provide means for locking the carriage in the barrel, as shown in Fig. 2 of the drawings, the carriage may .be so constructed that it will be held by friction in the barrel. The carriage 12 and trackway 13 are formed from a single pieceof sheet metal, the inner end of the trackway being provided with a flanged bearing 14. The opposite or outer end of the trackway is provided with a bearing plate 15 secured thereto by means of rivets or the like, the said bearing plate extending beyond the outer end of the trackway as clearly shown in Fig, l of the drawings. Opposite the bearing plate 15 and secured to the carriage 12 is a bearing plate 16 provided with a recess 17 for the purpose which will be hereafter explained. Rotatably mounted on the bearing plates 15 and 16 adjacent the outer end of the trackway 13 is a rectangular shaped feed roller 18. Passing over the feed roller 18 and around the flanged hearing 14 is a removable continuous belt 19 bearing on its exposed surface a plurality of tacks 20, which are secured thereto by gluing the same thereon or by any other suitable means. The belt 19 is formed of .leather or of any other suitable material located opposite three sides of the feed roller 18 as clearly shown in Fig. 7 of the upon engagement with.the object into which 13 in the recess 'member and in which upper edge of the finger 22 for the i of the feed roller 18 when intermittently the tack is to be driven as clearly shown in Fig. 7 of the drawings. The reciprocating member 21 is normally held in a forward position by means of an expansion spring 23 positioned in a recess 24 in the trackway 13 and embraces a piston rod 25 secured to the inner end of the reciprocating member 21 and slidably mounted through a U- shaped support 26 secured to the 'trackway 24, at a proper distance from the inner end thereof. The reciprocating member 21 is provided with a slit 27 extending well into the body of the reciprocating a spring leaf 28 is positioned. The spring leaf 28- is arranged and adapted to engage a groove 29 formed in each of the sides of the feed roller 18 adjacent the corners thereof, upon a forward movement of the reciprocating member 21 for intermittently 19 as is clearly shown in Fig. 6 of the drawings. As illustrated in Figs. 6 and 7 of the drawings, a recess 30 is provided in the assage rotated, as will be readily understood.

As illustrated in Figs. 8 and 9 of the drawings, my improved self tack fed hammer may be mounted upon an operating handle 31 by means of a support 32 secured to the side of the carriage 12. This arrangement is such that when using my fed hammer, the device can be ing advertising matter or the that are out of the reach of sized person.

In use, a belt bearing tacks or nails is positioned around the feed roller 18 and the flanged bearing 14 and as the tacks or nails are equally spaced apart, the tack or nail to be ruptured from the belt will be in a position extending laterally from the adjacent side of the feed roller. By an operative stroke of the hammer, the finger 22 first engages the object the tack or nail is to be driven into and forces the reciprocating; member 21 backwards. When the finger is disengaged from the object, the tack or nail driven into the object is ruptured from the belt 17 and the spring 23 forces the-reciprocating member into normal position and during this movement of the reciprocating member, into normal position, the spring leaf 28 engages one of the grooves 29 causing the feed roller 18 to rotate, as indicated by an arrow illustrated in Fig. 7 of the drawings, which brings into play the next used for tack like in places an ordinary operative stroke,

rotating the belt improved self tack or nail carried on the belt 17. This operation is repeated until all the tacks or nails carried by the belt 17 are ruptured therefrom, at which time a new belt is positioned around the feed roller 18 and the flanged bearing 14. When nails are carried. by the belt'17, the same operation is performed to detach the nails from the belt 17. But as will be readily understood, the nail cannot be driven into an object by one operative stroke. For this purpose the hamin'er head 11 is provided on the barrel 10 opposite the open end thereof and after the nail has been ruptured from the belt, by one the barrel is reversed and the hammer head 11 is brought into play. However, this is only necessary 'when the device is manually operated, for as will be readily understood, in connection with a nail driven machine it operates the same as whim tacks are carried on the belt instead of mm s.

The tack feeding mechanism as herein set I 'e invention. I, therefore, do not wish to be limited to the precise details of construction set forth, but

desire to avail myself of such variations and modifications as come within the scope of the appended claims.

aving described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A self feeding hammer including a housing; a carriage mounted in said housing adapted to receive a travelling tack bearing member; and means engaging said traveling tack bearing member for feeding the tacks carried thereby to the operative end of said hammer, said means being arranged and adapted to be moved in one direction by engagement with an object into which a tack is to be driven and to impart said feeding movement to said tack bearing member when returned toits initial position.

2. A self feeding hammer including a housing ;v a carriage mounted in said housing adapted to receive a continuous traveling tack bearing member; and means at one end of said housing for imparting movement-to saidtack bearing member for advancing-the tacks carried thereby to driving position, said means being arranged and adapted to be moved in one direction by engagement with: an object into which a tack is to be driven and to impart said feeding movement to said bearing member when returned to its initial position. i i

3. A self feeding hammer including a housing into which a continuous tack bearing member is adapted to be mounted; and means for moving said tack bearing member to advance the tacks carried thereby into drivin position, said means bein arranged and a apted to be moved in one direction by engagement with an object into which a tack is to be driven and to impart said feeding movement to said bearing member when returned to its initial position.

4. A self feeding hammer including a housing open at one end; a removable carriage mounted in said housing; means for locking said carriage in said housing; means on said carriage adapted to receive a tack bearing member and to permit rotation thereof; and means adapted to engage said tack bearing member on each operative stroke of the hammer to feed a tack into driving position.

5. A self feeding hammer including a housing; a removable carriage mounted in said housing adapted to receive a tack hearing member and to permit rotation thereof; means for locking said carriage in sald housing; and means adapted to engage said tack bearing member on each operative stroke of the hammer to advance the tacks into driving position. 6. A self feeding hammer including a housing; a removable carriage mounted 1n said housing and adapted to receive a tack bearing member and to permit rotation thereof; means for locking said carriage 1n said housing; and means adapted to engage said tack bearing member on each operative stroke of the hammer to advance the tacks into driving position, said means being adapted for engagement with anobject into which a tack is to be driven and to move said tack bearing member when returned to its initial position.

7. In a hammer, the combination with a. housing open at one end. of a carriage removably arranged in said housing; a lateral support on said carriage adapted to receive a continuous tack bearing member; and means at the open end of said housing for intermittently moving said member for advancing the tacks carried by said tack bearing member into driving position.

8. In a hammer, the combination with a.

housing open at one end, of a carriage removably arranged in said housing; a lateral support on said carriage adapted to receive a continuous tack bearing member; and means adapted for engagement at each operative stroke of said hammer with an object into which tacks are to be driven for feeding the tacks carried by said member into driving position.

9.1m a hammer, the combination with a housing open at one end, of a hammer head at the opposite end of said housing; a trackway mounted in said housing; a feed roller and said trackway being adapted to receive a tack bearing member; and a finger carried by said housing and extending through .the open end thereof adapted to engage said roller for moving said tack bearing member to advance a tack carried thereby into drivmg position, said finger being adapted to be moved in one direction by engagement with an-ob-ject into which a tack is to be driven and to impart a feeding movement to said tack bearing member upon' return to its initial position. i

- 10. lin a hammer, the combination with a housing open at one end, of a carriage removably mounted in said housing; a transverse feed roller mounted in said housing,

said feed roller'and said carriage being arranged and adapted to receive a tack bearing member; and a reciprocatory finger mounted in said housing and extending through the open end thereof and adapted to engage said roller for intermittently moving said tack bearing member to advance the tacks carried thereby into driving position, said finger being actuated by engagement with an object into which the tacks are to be driven.

11. In a tack feeding mechanism comprismg a housing open at one end a trackway mounted in said housing; a feed roller,

mounted adjacent said trackway at the open end of said housing; said roller and said trackway being adapted and arranged to receive a continuous tack bearing strip; a reciprocatory member mounted in said housing and adapted to engage said roller for moving said tack bearing member to advance the tacks carried thereby into driving position, said reciprocatory member being moved in one direction upon engagementwith the object into whlch the tacks are to be driven; and means for returning said reciprocatory member into its initial position.

12. In a tack feeding mechanism comprising a carriage; a trackway on said carriage; a feed roller adjacent one end of said trackway, said feed roller and said trackway being adapted to receive a continuous tack bearing member; a reciprocatory member at one end of said carriage adapted to engage said feed roller for intermittently moving said tack bearing member to advance the tacks carried thereby into driving position. and a finger carried by said member adapted to engage the object into which the tacks are to be driven for imparting movement to said reciprocatory member.

13. In a tack feeding mechanism comprising a housing; a carriage removably .a tack bearing member; transverse grooves carriage and traversing said housing, said ing; and means adapted to receive feed roller and said trackway being adapted to receive a tack bearing member; and a reciprocatory member mounted in said housing adapted upon engagement with said feed roller for intermittently moving said tack bearing member to advance the tacks carried thereby into driving position, said reciprocatory member being operable upon engagement with an object into which the tacks are to be driven.

15. In a tack feeding and driving mechanism comprising a housing open at one end; a carriage mounted in said housing; means adapted to receive a tack bearing member; means for locking said carriage in said housengaging said tack bearing member for intermittently moving said member to advance the tacks carried thereby into driving position, said means being operable upon engagement with an object into which the tacks are to be driven, and adapted to make such engagement upon each operative stroke of the driving mechanism.

16. In a tack feeding and driving mechanism comprising a housing open at one end; a hammer head carried by the opposite end of said housing; a trackway mounted in said housing; a rectangularly shaped feed roller adjacent one end of said trackway, said feed roller and said trackway being adapted to receive a tack bearing member; grooves formed in the sides of said feed roller; a reciprocatory member .mounted in said housing and adapted to engage said grooves for intermittently moving said bearing memberto advance the tacks carried thereby into driving position; and a finger carried by said reciprocatory member adapted to engage the object into which the tacks are to be driven to impart movement to said reciprocatory member in one direction.

' 17. In a tackfeeding and driving mechanism comprising a housing open at one end; a hammer head carried by the opposite end of said housing; a trackway mounted in said housing; a rectangularly shaped feed roller adjacent one .end' of said trackway, said feed roller and said trackway being a tack bearing member; grooves formed in the sides of said feed roller; a reciprocatory member mounted in said housing adapted to engage said grooves for intermittently moving said tack bearing parting movement said housing;

ea ers member to advance the tacks carried thereby into driving position; a finger carried by said reciprocatory member adapted to engage the'objectinto which the tacks are to be driven to impart movement to said reciprocatory member in one direction; and

tack bearing member; and a reciprocatory member carried by said housin and adapted t engage said feed roller or immember to advance the tacks carried thereby into driving position.

19. In a tack feeding and driving mechanism comprising a housing open at one end; a carriage mounted in said housing; means for locking said carriage in said housing; a trackway on said carriage; a rectangularly shaped feed roller mounted in -said housing adjacent one end of said trackway having transverse grooves formed therein; a

spring-controlled member mounted in said housing, and extending through the open end thereof and provided with a recess ex tending into the body thereof; a spring memberv mounted in said recess and adapted to engage said grooves for rotating said feed roller to move the tacks carried by said tack bearing member into drivin position, said spring member being adapte to make such engagement with said feed roller upon movement of said spring-controlled member. f

20. A hammer of the class described comprising a housing; a carriage mounted in means on said carriage adapted to receive a continuous tack bearing member; means for imparting movement to said tack member for advancing-the tacks carried thereby into driving position; and means for locking said carriage in said housing.

21. A hammer of the class described comprising a housing open at one end; a carriage mounted in said housing; means for locking said carriage in said housing; a U shaped trackway formed on said carriage; oppositely disposed bearing plates adjacent one end of said carriage at the open end of said housing; a rectangularly shaped feed roller carried jacent the end of said trackway, said feed roller and saidtrackway being adapted to receive a tack bearin member; a reciprocatory member carried by said bearing plates and having a recess therein; a rod member connected to said reciprocatory by said bearing plates adto said tack bearing member and slidably mounted on said carriage; a spring member embracing said rod member; a spring member positioned in the recess in said reciprocatory member and adapted to engage said feed roller for intermittently moving said tack bearing member to advance the tacks carried thereby into driving position; and a finger carried by said reeiproratory member and extending through the open end of said housing; said finger being adapted to impart movement to said reciprocatory member in one direction upon engagement with an object into which the tacks are to be driven, said reciprocatory member being returned to its initial position by said spring member embracing said rod member.

In testimony whereof have signed my name to this specification in the presence of two subscribing Witnesses.

NATHAN M. PURVIANCE.

Witnesses:

ANNA PURVIANCE, MRS. R. L. MARSHALL. 

